74AC157SCX = CD74AC157M = MC74AC157DG

Multiplexer 1-Element CMOS 8-INPUTS SMD SOIC-16

Fairchild

IC QUAD 2 INPUT Multiplexer DIP-16

Fairchild · 25/TUBE

IC DUAL 4-INPUT MULTIPLEXER DIP-16

National Semiconductor · 25/TUBE

IC QUAD 2-1 DATA SELEC/MUX SOIC 16 = CD74AC158M / 74AC158SC

Motorola

IC 8-LINE TO 1-LINE DATA SELECTOR / MULTIPLEXER DIP-16 obsolete

Motorola · 25/tube